{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "Electroencephalographic activity was recorded in 11 of these patients , and all patients had a formal neurological evaluation and brain imaging studies ."}
{"Disease": [], "Chemical": []}